Table 1.

Cases included in the qualitative analysis, by age group and occupational grouping

Age groups	Technicians and Trades Workers n (%)	Machinery Operators and Drivers n (%)	Labourers n (%)	Total
15–19	1 (100.0)	0 (0.0)	0 (0.0)	1 (100.0)
20–29	3 (37.5)	3 (37.5)	2 (25)	8 (100)
30–39	4 (50)	1 (12.5)	3 (37.5)	8 (100)
40–49	3 (42.86)	2 (28.57)	2 (28.57)	7 (100)
50–59	2 (28.57)	3 (42.8)	2 (28.5)	7 (100)
60–69	1 (33.3)	1 (33.3)	1 (33.3)	3 (100)
Total	14 (41.1)	10 (29.4)	10 (29.4)	34 (100)